CN102130650B - Method for testing and adjusting single-phase capacitor motor - Google Patents
Method for testing and adjusting single-phase capacitor motor Download PDFInfo
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- CN102130650B CN102130650B CN 201110004361 CN201110004361A CN102130650B CN 102130650 B CN102130650 B CN 102130650B CN 201110004361 CN201110004361 CN 201110004361 CN 201110004361 A CN201110004361 A CN 201110004361A CN 102130650 B CN102130650 B CN 102130650B
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- phase winding
- winding
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- 239000003990 capacitor Substances 0.000 title claims abstract description 23
- 238000012360 testing method Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004804 winding Methods 0.000 claims abstract description 50
- 238000002474 experimental method Methods 0.000 abstract description 9
- 238000013461 design Methods 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 description 9
- 238000010168 coupling process Methods 0.000 description 9
- 238000005859 coupling reaction Methods 0.000 description 9
- 238000006467 substitution reaction Methods 0.000 description 5
- 230000007935 neutral effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000010977 unit operation Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
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- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
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Abstract
The invention relates to a method for testing and adjusting a single-phase capacitor motor, the rated voltage of the motor is UN, the original number of turns of a secondary phase winding is Na, and the original number of the turns of a main phase winding is Nm; and the method is characterized in that, the method comprises the following steps: 1) removing an original series capacitor in the motor, and then connecting as follows, wherein the input voltage of the main phase winding is Um; and the voltage Uac which is in the same phase with the Um is inputted after connecting the secondary phase winding with the capacitor C in series; 2) adjusting numerical values of the Um or/and the Uac and the C till the operation of the motor is in line with design requirements, and recording the numerical values of the Um, the Uac and the C as Um0, Uac0 and C0; and 3) adjusting the number of the turns of the main phase winding to NmT, adjusting the number of the turns of the secondary phase winding to NaT, and adjusting the capacitance of the series capacitor to CT according to the following formulas: NmT=Nm (UN/Um0); NaT=Na (UN/Uac0); and CT=C0 (Uac0/UN)2. By adopting method, the performances of all working points can be foreseen in an experiment for deciding the optimal capacitance and the number of the turns, the design period of a product is further shortened, and the method is particularly applicable to designing the single-phase capacitor motor which needs to give attention to startup and operation performance.
Description
Technical field
The present invention relates to a kind of method for test adjusting of single-phase condenser motor, according to International Patent Classification (IPC), classification belongs to H02K15/00, H02K17/08 or H02K3/28.
Background technology
Single-phase condenser motor belongs to the Asymmetric Electric motivation, its electromagnetism calculates more than symmetrical motors such as threephase motors complicated, prior art has proposed to determine by experiment the method for test adjusting of its optimal capacitance amount and the number of turn for this reason: with symmetrical two-phase power supply powered operation, each that calculate its best in voltage, electric current and the input power measurement value of rated operation point according to motor be the number of turn and capacitance mutually to existing capacitor motor; See reference [1] and [2] for details.Yet the method need dispose symmetrical two-phase power supply very not commonly used.In addition, the operation of symmetrical motor and single-phase condenser motor has very large difference: the former all can keep symmetrical operating state at all working point, and the latter can only be in symmetrical operating state in certain 1 working point.The single-phase condenser motor that determines capacitance and the number of turn by the method only has the performance identical with the experiment motor at rated operation point, performance in other working point then obviously departs from, namely in experiment, can not predict, need after the single-phase condenser motor prototyping testing of the capacitance that determines by the method and number of turn trial-production, just can know, if undesirable need are adjusted again, therefore prolonged the product design cycle.This situation especially is unfavorable for taking into account the design that starts with the single-phase condenser motor of behavior in service.
Summary of the invention
Technical problem to be solved by this invention is, proposes a kind of method for test adjusting of single-phase condenser motor, can be in the experiment of its optimal capacitance amount of decision and the number of turn performance of precognition all working point, to overcome the described deficiency of background technology.
The technical scheme that the present invention solve the technical problem is, a kind of method for test adjusting of single-phase condenser motor, and the rated voltage of motor is U
N, the original number of turn of parafacies winding is Na, the original number of turn of principal phase winding is Nm; It is characterized in that the method may further comprise the steps:
1) motor is removed behind the former series capacitor by following connection:
---principal phase winding input voltage Um;
---the voltage U ac of input and Um homophase behind the parafacies windings in series capacitor C;
2) adjust Um or/and the numerical value of Uac and C, until the operation of motor meets designing requirement, the records of values of Um, Ua and C is Um at this moment
0, Uac
0And C
0
3) press following formula, the number of turn of principal phase winding is adjusted into Nm
T, the number of turn of parafacies winding is adjusted into Na
T, the capacitance of institute's series capacitor is adjusted into C
T:
Nm
T＝Nm(U
N/Um
0)；
Na
T＝Na(U
N/Uac
0)；
C
T＝C
0(Uac
0/U
N)
2。
Because the experiment motor was still pressed the capacitor motor operation during this test was adjusted, and with reference to transformer impedance conversion and circle voltage invariance principle, can keep the magnetic field configuration identical with testing motor when moving with rated voltage by the motor after the described formula adjustment, thereby have the performance identical with the experiment motor at all working point.Like this, the performance of test experiments motor can be predicted the performance of the motor after the adjustment.Experiment and electromagnetism calculate and also show, for both fixed structure single-phase condenser motors, the numerical value that can adjust Um, Uac and C makes performance cause the best as target reaches take designing requirement, especially can reach at the assigned work point symmetry and move, and need not to use symmetrical two-phase power supply to test adjustment, and avoid using as stated in the Background Art symmetrical two-phase power supply to test the disadvantage of adjustment.
Description of drawings
Fig. 1 is the present invention's the 1st embodiment circuit diagram;
Fig. 2 is the present invention's the 2nd embodiment circuit diagram.
Embodiment
The 1st embodiment circuit of the present invention as shown in Figure 1, the motor 1 that test is adjusted is a use in sewing machine 4 utmost point single-phase capacitor operation asyn. motors, rated voltage is 220V, its principal phase winding 11 original numbers of turn are 1000, parafacies winding 12 original numbers of turn are 1200.Motor 1 is at first removed former series capacitor.The neutral line N utmost point from the 220V single phase poaer supply of electrical network links to each other with the points of common connection of principal phase winding 11 with parafacies winding 12.The input of automatic coupling voltage regulator 2 and automatic coupling voltage regulator 4 is connected in the phase line A utmost point and the neutral line N utmost point, the pressure regulation output of automatic coupling voltage regulator 2 is through the input of electrical parameter measuring instrument 3 connection principal phase windings 11, and the pressure regulation output of automatic coupling voltage regulator 4 is through the input of electrical parameter measuring instrument 5 and adjustable electric tank 6 auxiliary connection phase windings 12.Electrical parameter measuring instrument 3 is comprised of voltmeter 31, wattmeter 32 and ammeter 33, detects respectively voltage U m, the power P m of input principal phase winding 11 and electric current I m and can this calculate or show its power factor Φ m.Electrical parameter measuring instrument 5 is comprised of voltmeter 51, wattmeter 52 and ammeter 53, detects respectively voltage U ac, the power P a of input parafacies winding 12 and capacitive 6 and electric current I a and can this calculate or show its power factor Φ a.Capacitive 6 is comprised of a plurality of capacitors 61 and reversing switch 62, and rotation reversing switch 62 can change the capacitance C of capacitive 6.
ImNm＝IaNa
(the aforementioned former major and minor phase winding number of turn of substitution is 1000Im=1200Ia);
Pm=Pa, perhaps Φ m-Φ a=90
0
Record at this moment:
---the capacitance C of capacitive 6
0
---the magnitude of voltage Um that electrical parameter measuring instrument 3 is shown
0
---the magnitude of voltage Uac that electrical parameter measuring instrument 5 is shown
0
With above-mentioned record, as follows, the number of turn of principal phase winding 11 is adjusted into Nm
T, the number of turn of parafacies winding 12 is adjusted into Na
T, the capacitance of the capacitor of connecting is adjusted into C
T:
Nm
T＝Nm(U
N/Um
0)
(substitution rated voltage 220V and former principal phase umber of turn 1000 are Nm
T=220000/Um
0);
Na
T＝Na(U
N/Uac
0)
(substitution rated voltage 220V and former parafacies umber of turn 1200 are Na
T=264000/Uac
0);
C
T＝C
0(Uac
0/U
N)
2
(substitution rated voltage 220V is C
T=C
0(Uac
0/ 220)
2).
The 2nd embodiment circuit of the present invention as shown in Figure 2, it is fit to the test adjustment of less range performance, mainly is with the difference of the 1st embodiment circuit of the present invention:
---cancelled automatic coupling voltage regulator 2 and electrical parameter measuring instrument 3, namely principal phase winding 11 is directly by the 220V Winding Single Phase Capacitance from electrical network;
---the points of common connection of principal phase winding 11 and parafacies winding 12 separately, each resistance of connecting be 1 ohm resistance 71 and resistance be 1.2 ohm resistance 72 after be access to the neutral line N utmost point;
---principal phase winding 11 and the tie point of resistance 71 are connected X-axis input terminal and the Y-axis input terminal that is connected respectively oscilloscope 70 with the tie point of resistance 72 with the parafacies winding, the oscillographic G utmost point connects the neutral line N utmost point, and the gain of X-axis and Y-axis is adjusted as identical; Also can change into and use 2 identical current transformers, it is elementary respectively by electric current of principal phase winding 11 and parafacies winding 12, secondaryly connects respectively oscillographic X-axis, Y-axis input terminal and the G utmost point, and adjust into X-axis 1.2 times of the gain of Y-axis.
---the capacitance C of capacitive 6
0
---the magnitude of voltage Uac that electrical parameter measuring instrument 5 is shown
0
With above-mentioned record, by the following formula of substitution rated voltage 220V and former parafacies umber of turn 1200, the number of turn of parafacies winding 12 is adjusted into Na
T, the capacitance of the capacitor of connecting is adjusted into C
T:
Na
T＝440000/Uac
0；
C
T＝C
0(Uac
0/220)
2。
Electrical parameter measuring instrument among the embodiment can be selected from widely used blue or green intelligence 8700 or 8900 series multifunctional instrument, and voltage, electric current, power or power factor meter that also can be traditional combine, or forms test macro with the transducer coupled computer.Automatic coupling voltage regulator also can be used the electronic type variable-frequency variable-voltage power supply of having popularized at present instead, but should be noted that the phase preserving of main winding and auxiliary winding two road power supplys is consistent.
In addition, the motor that test is adjusted also can be 110V etc. other rated voltage and the capacitor motor of other kind, capacitor start or start and the asynchronous motor that turns round for example, and the capacitor start of magnetic resistance, magnetic hysteresis or permanent magnetism or capacitor operating synchronous motor, the latter's rated operation point is the synchronous speed point.
Reference
1 head of district encourages, and fills out grand. the application of two-phase power supply in single-phase condenser motor research and design. and household electrical appliance science and technology, 1985,3:1～4
2 Sun Yun rocs. monopole asynchronous motor and application thereof (resultant current analytic approach). Beijing: China Machine Press, 1987,488～492
Claims (4)
1. the method for test adjusting of a single-phase condenser motor, the rated voltage of motor is U
N, the original number of turn of principal phase winding is Nm, the original number of turn of parafacies winding is Na; It is characterized in that the method may further comprise the steps:
1) motor is removed behind the former series capacitor by following connection:
---principal phase winding input voltage Um;
---the voltage U ac of input and Um homophase behind the parafacies windings in series capacitor C;
2) adjust Um or/and the numerical value of Uac and C, until the operation of motor meets designing requirement, the records of values of Um, Uac and C is Um at this moment
0, Uac
0And C
0
3) press following formula, the number of turn of principal phase winding is adjusted into Nm
T, the number of turn of parafacies winding is adjusted into Na
T, the capacitance of institute's series capacitor is adjusted into C
T:
Nm
T＝Nm(U
N/Um
0)；
Na
T＝Na(U
N/Uac
0)；
C
T＝C
0(Uac
0/U
N)
2。
2. according to the described method for test adjusting of claim 1, it is characterized in that: described designing requirement comprises that motor is at the rated operation point symmetrical operation.
3. according to the described method for test adjusting of claim 2, it is characterized in that, also comprise:
---measure electric current and power or the power-factor angle of principal phase winding, parafacies winding;
---described motor at the rated operation point symmetrical operation is:
ImNm＝IaNa；
Pm=Pa, perhaps Φ m-Φ is a=90 °;
In the formula:
Im---principal phase winding current;
Ia---parafacies winding current;
Pm---principal phase winding power;
Pa---parafacies winding power;
Φ m---principal phase winding power factor angle;
Φ a---parafacies winding power factor angle.
4. according to the described method for test adjusting of claim 2, it is characterized in that, also comprise:
---the electric current ampere-turn signal of principal phase winding, parafacies winding is inputted respectively oscillographic X-axis input terminal and Y-axis input terminal;
---described motor at the rated operation point symmetrical operation is: the Li Sha of oscilloscope display educates figure for circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110004361 CN102130650B (en) | 2011-01-07 | 2011-01-07 | Method for testing and adjusting single-phase capacitor motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110004361 CN102130650B (en) | 2011-01-07 | 2011-01-07 | Method for testing and adjusting single-phase capacitor motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102130650A CN102130650A (en) | 2011-07-20 |
| CN102130650B true CN102130650B (en) | 2013-03-27 |
Family
ID=44268564
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|---|---|---|---|
| CN 201110004361 Expired - Fee Related CN102130650B (en) | 2011-01-07 | 2011-01-07 | Method for testing and adjusting single-phase capacitor motor |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332798B (en) * | 2011-09-24 | 2013-06-12 | 叶露微 | Low-power single-phase condenser motor and method for adjusting capacitance and turn number thereof |
| CN105673539B (en) * | 2016-04-05 | 2018-03-30 | 江门市金羚排气扇制造有限公司 | A kind of single-phase axial fan |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11299287A (en) * | 1998-04-16 | 1999-10-29 | Yoshinori Ito | Speed controller for single-phase induction motor |
| KR20050108640A (en) * | 2004-05-12 | 2005-11-17 | 엘지전자 주식회사 | Condenser running single-phase induction motor |
| CN100568678C (en) * | 2005-08-31 | 2009-12-09 | 江门市洗衣机厂 | Three-phase winding single-phase capacitor operation motor for washing machine |
| CN101325353B (en) * | 2007-06-14 | 2010-12-08 | 江门市洗衣机厂 | Electromagnetic design method for Y-wiring single phase capacitance run motor |
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2011
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Owner name: JIANGMEN JINLING MOTOR CO., LTD. Free format text: FORMER OWNER: YE LUWEI Effective date: 20130218 |
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Inventor after: Zhang Shanquan Inventor after: Qin Yuzhang Inventor after: Liang Yongneng Inventor after: Yao Mei Inventor after: Chen Meiling Inventor after: Zhang Qiang Inventor after: Chan Danzhong Inventor after: Qu Changzhao Inventor after: Ye Luwei Inventor before: Ye Luwei |
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Free format text: CORRECT: ADDRESS; FROM: 529020 JIANGMEN, GUANGDONG PROVINCE TO: 529085 JIANGMEN, GUANGDONG PROVINCE Free format text: CORRECT: INVENTOR; FROM: YE LUWEI TO: ZHANG SHANQUAN QIN YUZHANG LIANG YONGNENG YAO MEI CHEN MEILING ZHANG QIANG TAN DANZHONG OU CHANGZHAO YE LUWEI |
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Effective date of registration: 20130218 Address after: 529085 Guangdong city of Jiangmen province Tangxia Mashan town of Pengjiang District feet Applicant after: Jiangmen Jinling Motor Co., Ltd. Address before: 529020 Guangdong East Road, Pengjiang District, East dike Bay Garden, one of the buildings, 102, 4, Applicant before: Ye Luwei |
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Granted publication date: 20130327 Termination date: 20160107 |
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